1 // Tests for instrumentation of C++11 lambdas 2 3 // RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-lambda.cpp -std=c++11 -o - -emit-llvm -fprofile-instrument=clang > %tgen 4 // RUN: FileCheck --input-file=%tgen -check-prefix=PGOGEN %s 5 // RUN: FileCheck --input-file=%tgen -check-prefix=LMBGEN %s 6 7 // RUN: llvm-profdata merge %S/Inputs/cxx-lambda.proftext -o %t.profdata 8 // RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-lambda.cpp -std=c++11 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata > %tuse 9 // RUN: FileCheck --input-file=%tuse -check-prefix=PGOUSE %s 10 // RUN: FileCheck --input-file=%tuse -check-prefix=LMBUSE %s 11 12 // PGOGEN: @[[LWC:__profc__Z7lambdasv]] = private global [4 x i64] zeroinitializer 13 // PGOGEN: @[[MAC:__profc_main]] = private global [1 x i64] zeroinitializer 14 // LMBGEN: @[[LFC:"__profc_cxx_lambda.cpp__ZZ7lambdasvENK3\$_0clEi"]] = private global [3 x i64] zeroinitializer 15 16 // PGOGEN-LABEL: define {{.*}}void @_Z7lambdasv() 17 // PGOUSE-LABEL: define {{.*}}void @_Z7lambdasv() 18 // PGOGEN: store {{.*}} @[[LWC]], i64 0, i64 0 19 void lambdas() { 20 int i = 1; 21 22 // LMBGEN-LABEL: define internal{{( [0-9_a-z]*cc)?( zeroext)?}} i1 @"_ZZ7lambdasvENK3$_0clEi"( 23 // LMBUSE-LABEL: define internal{{( [0-9_a-z]*cc)?( zeroext)?}} i1 @"_ZZ7lambdasvENK3$_0clEi"( 24 // LMBGEN: store {{.*}} @[[LFC]], i64 0, i64 0 25 auto f = [&i](int k) { 26 // LMBGEN: store {{.*}} @[[LFC]], i64 0, i64 1 27 // LMBUSE: br {{.*}} !prof ![[LF1:[0-9]+]] 28 if (i > 0) {} 29 // LMBGEN: store {{.*}} @[[LFC]], i64 0, i64 2 30 // LMBUSE: br {{.*}} !prof ![[LF2:[0-9]+]] 31 return k && i; 32 }; 33 34 // PGOGEN: store {{.*}} @[[LWC]], i64 0, i64 1 35 // PGOUSE: br {{.*}} !prof ![[LW1:[0-9]+]] 36 if (i) {} 37 38 // PGOGEN: store {{.*}} @[[LWC]], i64 0, i64 2 39 // PGOUSE: br {{.*}} !prof ![[LW2:[0-9]+]] 40 for (i = 0; i < 10; ++i) 41 f(9 - i); 42 43 // PGOGEN: store {{.*}} @[[LWC]], i64 0, i64 3 44 // PGOUSE: br {{.*}} !prof ![[LW3:[0-9]+]] 45 if (i) {} 46 } 47 48 // PGOUSE-DAG: ![[LW1]] = !{!"branch_weights", i32 2, i32 1} 49 // PGOUSE-DAG: ![[LW2]] = !{!"branch_weights", i32 11, i32 2} 50 // PGOUSE-DAG: ![[LW3]] = !{!"branch_weights", i32 2, i32 1} 51 52 // LMBUSE-DAG: ![[LF1]] = !{!"branch_weights", i32 10, i32 2} 53 // LMBUSE-DAG: ![[LF2]] = !{!"branch_weights", i32 10, i32 2} 54 55 int main(int argc, const char *argv[]) { 56 lambdas(); 57 return 0; 58 } 59
